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(No Model.) 10 Sheets-Sheet l. K. FRUOHT.

MACHINE FOR FINISHING WASHERS.

No. 504,830. PatentedSept. 12, 1893.

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MACHINE FOR FINISHING WASHERS. No. 504,830. Patented Sept-Q 12, 1893.

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T H G U R I K a d O M m MAGHINE FOR FINISHING WASHERS.

Patented Sept. 12, 1893.

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(No Model.) 10 Sheets-Sheet 4.

K. PRUOHT. MACHINE FOR FINISHING WASHERS.

No. 504,830. Patented Sept. 12, 1893.

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K PRUOHT MACHINE FOR FINISHING WASHERS.

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(No Model.) 10 Sheets-Sheet 6. K. PRUGHT.

MACHINE FOR FINISHING WASHERS. No. 504,830. Patented Spt. 12, 1893.

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MAGHINE FOR FINI$HING WASHERS.

No. 504,880. Patented Sept. 12, 1893.

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K. PRUGHT. MACHINE FOR FINISHING WASHERS. No. 504,830. Patented Sept. 12, 1893.

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K.-PRUGHT-. MACHINE FOR FINISHING WASHERS.

No. 504,830. Patented Sept. 12, 1 893.

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O 1 t e e h S S t e e h S m T H O U R nr. K a d 0 M V 0 m MACHINE FOR FINISHING WASHERS.

' Patented Sept. 12, 1893.

2223x9919: I $6529W' UNITED STATES PATENT OFFICE.

KARL FRUCHT, OF BERLIN, GERMANY.

MACHINE FOR FlNISHlNG WASHERS.

SPECIFICATION forming part of Letters Patent No. 504,830, dated September 12,1893.

Application filed January 16, 1893. Serial No. 458,484. (No model.)

To all whom it may concern.-

Be it known that I, KARL FRUGHT, of the city of Berlin, Kingdom of Prussia, Empire of Germany, have invented certain new and useful Improvements in Machines for Adjusting Vashers, of which the following is a specification.

This invention relates to improvements in machines for adjusting or finishing washers; and the objects of the same are, first, to provide a continuously acting feeding mechanism; second, to aiford facilities for automatically chucking or mounting the blanks as well as for properly adjusting the turning tools. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is an end view of the entire machine; Fig.2 a side elevation and Fig. 3 a top view of the machine, while Figs. 4 to 34 are detailed views of the main parts and mechanism in different positions represented on an enlarged scale.

Similar numerals refer to similar parts throughout the several views.

The legs or standards 1 and the bed 2 constitute the frame to which are attached the workingparts ormechanism. Thehead-stock 3 containing the hollow live spindle or mandrel 4 with the driving pulley 5 is fastened on the bed 2. Parallel to the axis of the mandrel 4 a shaft 8, jcurnaled by bearings 7 of the bed 2,is arranged. This shaft 8 is adapted to control the adjustment of the turning tools and is driven from the hollow-mandrel 4 by an intermittent gear, particularly shown by Figs. 4 and 5. The latter consists of a cam 9 fixed on the mandrel 4 against which bears a bifurcated lever 10 having its fulcrum on the shaft 8 and being provided with a pawl 13 which engages with a ratchet-wheel 11 on the shaft 8, so that the latter is intermittently turned notwithstanding the continuous motion of the mandrel.

The chucking or mounting of the single washer-blanks is performed in the following manner: At the side of the hollow mandrel4 but opposite of and parallel to the shaft 8 is arranged a V-shaped channel 17 supported by arms 15 and 16 of the bed 2. In this channel the blanks are placed side by side and successively conveyed to the feeding apparatus proper by means of a pusher 19 actuated by a weight 22 which is hung on cords leading over grooved pulleys 21.

The feeding mechanism consists of a disk 23 provided with a radial notch 27 and fastened on a shaft 24 which is journaled in the bearings 25 26,Figs. 6,7 and 11 to 14. On the rear side of the disk a plate 28 covering the radial notch 27 is attached, thus forming a chute which is adapted to receive the foremost of the blanks 13 as soon as on the rotation of the disk 23 the mouth of the chute comes in the reach of the channel 17.

For controlling the entrance of the blanks, so that they may be introduced one by one independent of their thickness, a small disk 29 is attached to the plate 28 just in front of the row of washer-blanks in the channel 17. This disk 29 may be adjusted by means of a screw 30 fixed thereto and fitting to the female thread of a bridge 31 and a counter-nut 32, the former being secured to the rear side of the plate 28 by screws or rivets. The plate 28 projecting beyond the circumference of the disk 23 forms together with the plate 36 and the partitions 33, 34 and 35 two separate compartments or chambers 37 and 38 for the reception of the washers, the former for the last finish ed washer and the latter for the foremost blank from the channel 17.

In Fig. 12 the compartment 38 is open to the right; thus a blank 18 dropped into 38 will leave this compartment on the right hand side by turning the disk 23 to the left. This blank then slides into a wedge-shaped chamber formed by the plate 38, the angular arranged flaps 41, 42 turning on pivots 39 40, and the triangular plates 43 44; the latter being attached to the flaps by means of dovetails 45 46 and held in position by screws 47 48, so that they may be adjusted in a direction vertically to the plane of plates 36 and 38 in accordance with the thickness of the blanks. These plates 43 44 are of such a size and form that an angular open space is left between their opposite edges in the event that the flaps 41 42 are closed by the spring 49, so as to render the blank resting within the space limited by the flaps, accessible from one side to the chucking apparatus. Thus the blank may only be released from the compartment 38, when the flaps 41 42 are swung outside, which will be accomplished as soon as the plate 28 on continuing its rotation with the disk 23 has arrived at the position shown in Fig. 10 and the blank chucked by the chucking apparatus 86 87 (Figs. 19 to 21) hereinafter described.

The chucking apparatus is placed within the hollow mandrel 4 and the position of the parts of the transporting mechanism shown in Fig. 10 is that in which the hole of the washer blank 18 within the angular part of the compartment 38 is coincident with the bipartite chuck or mandrel 86 87. In this position the latter is pushed forward and thereby caused to enter the hole of the blank 18 and to rigidly clamp the same while the rotation of the disk 23 is stopped for a short time. As soon as the latter again continues its rotation the blank held by the chuck 86 87 is withdrawn from the compartments 38 since the flaps 41 42 are caused to open by the blank itself and against the tendency of the spring 49. The washer is then turned and finished in a manner hereinafter described and on the next revolution of the disk 23 dropped into the compartment 37, since the chuck 86 87 will be withdrawn into the hollow mandrel 4 at the momentthe mouth of the compartment 37 comes in reach of the finished washer; a sufficient space of time having elapsed before the disk 23 arrives at the position (Fig. 10) in which it stands still for a moment to allow the chuck to enter into the hole of the next following blank 18 within the compartment 38. The disk 23 on continuation of its rotation until it arrives at the position, Fig. 8, has in the meantime thrown out the finished washer contained within the compartment 37 into a chute or other means leading to a collecting vessel. This movement of the disk 23 is preferably effected by a ratchet wheel fixed on the shaft 24 (Figs. 15 to 18) and operated conjointly by two pawls 51 52 placed beside each other. The pawls are pivoted by screws 55 56 respectively to the weighted double-armed levers 53, 59, and 54, 60, respectively, which are fulcrumed on the shaft 24. The pawls 51 52 are attached to the arms 53 and 54 respectively of the said levers, the other arms 59 and 60 of which extending into the path of the cams 61 62 and 63 64 respectively of the cam wheel 61 keyed onto the hollow mandrel 4. By this means the continuously rotating hollow live spindle or mandrel 4 is enabled to rock the levers 53, 59 and 54, 6O alternately in conjunction with the weights 57, 58 in order to cause with the aid of the pawls 51, 52 and the ratchet-wheel 50 (Fig. 15) an intermittent rotation of the shaft 24. The pauses thus performed in the motion of the shaft 24 are required for the purpose of permitting the foremost blank in the channel 17 to safely enter into the compartment 38 of the disk 23, mounting the same to the chuck and withdrawing the latter from the finished washer.

If it is desired to stop the rocking motion of thelevers 53, 59 and 54, 60 for a certain time, arms 65, 66 mounted on the shaft 24 may be employed in the path of which reaches the lateral projection 70 of a double-armed lever 69, 71 pivoted at 68 to the live spindle stock 3. The arm 71 of the said lever is provided with an adjustable weight 72 and a downward projecting finger 73 which bears upon a rotating shaft 8 in the path of a cam 74, so that at each revolution of the shaft the double-armed lever 69, 71 is caused to perform one complete oscillation. As the position of the arm 66 on the shaft 24 is adjustable the operation of the several parts may be regulated in such a manner, that in the position of the same represented by Fig. 8 the double-armed lever 69, 71 is lifted by means of the cam 74 acting upon the finger 73, in which position the projection 70 meets the arm 66 (Fig. 18), thus arresting the disk 23 in the moment, in which the center of the blank 18 held by the flaps 41, 42 has arrived in the position exactly coincident with the axis of the live-spindle 4. However as soon as the finger 73 of the lever 69, 71 drops off the cam 74 under the influence of the weight 72, the arm 66 is released from the projection 70 and the latter is raised into the path of the arm 65 (Figs. 15 to 17) thereby causing the shaft 24 and the disk 23 connected thereto to stand still during the time the washer is turned and finished.

The chucking of the washer blank on arriving at the position coincident with the live-spindle 4 is efiected in the following manner: The hollow live-spindle or mandrel 4 is provided at its foremost end with longitudinal slots,and in front of the live-spindle stock 3 is arranged a frame 75 (Figs. 19 to 21), having a rectangular open space, on the vertical sides of which are provided the grooves 76, 77 for guiding two V- shaped slides 78, 79 which may be adjusted by means of the screws 91, 92 extending through the transverse sides 93, 94 of the frame. At the free end of each of the vertically extending legs of the U-shaped slides 78, 79 is provided a horizontal stud (80, 81, 82, 83) forming the fulcrum for one of the levers 84, 85 to which are attached the heretofore mentioned chucks or jaws 86, 87 serving to chuck the washerblank on entering the hole of the latter. The reversal of the said levers 84, 85 within the limits indicated by full and dotted lines, Fig. 19, is elfected by the intimately jointed wedges 88, 89 which are rigidly connected to the axially arranged rod 90 and adapted to move parallel to the axis of the hollow livespindle 4 with the aid of the device particularly illustrated by Figs. 22 to 27. For this reason an adjustable sleeve 102 is provided on the rod 90 and attached to a cross-head 99 which is guided by its lateral sockets 97, 98 upon rods 95, 96 fastened to the live-spindle stock 3, and is caused by means of two helical springs 100, 101, or like means, to approach the live spindle stock. In proximity to the socket 97 is arranged on the guide rod 95 the have 105 of a sliding lever or bow1l6 engagin g by means of the anti-friction roller119 on the bolt 118 with a worm cam 120 on the rear end of the live-spindle or mandrel 4, and on the rotation of the latter the bow 116 is temporarily rearwardly shifted. During this movement the lever or bow 116 is also guided on the rod 96 by the slot of its downward extending arm 117 concentrically arranged to the pivot 95 and admitting the lifting of the sliding lever or bow 116, whereby the antifrietion roller 119 is released from the worm cam 120. This is advantageously effected under the influence of an adjustable weight 113 on the lever 112 attached to the bow 116 and at the moment, when the downward extending finger 114 of the lever 112 is released from a cam 115 on the shaft 8, Fig. 22. The nave 109 of the lever 112 is adapted to rock on the nave 105 of the sliding lever or bow and is attached thereto through the medium of a stud 111 entering into a slot 110 of the former. To the nave 105 of the bow 116 is furthermore rigidly connected an arm 106, the extreme lower end of which isprovided with a laterally projecting nose 107 intermeshing with a second cam 108 on the shaft 8. \Vhen the levers 84, within the hollow spindle 4 are in the position represented by full lines, Fig. 19, the sliding bow 116 will occupy the position represented by dotted lines, Fig. 22, in which the cam 108 retains the arm 106 in the position shown by dotted lines, Fig. 22. However as soon as the nose 107 of the arm 106 quits the cam 108 the bow 116 is admitted to drop under its own weight, in order to engage the anti-friction roller 119 with the worm cam 120. Owing to the rigid connection of the latter to the continuous rotating hollow spindle 4 the sliding lever or bow 116 as well as the cross-head 99 will become rearwardly shifted on the guide rods 95, 96 of which motion the rod also partakes, thereby releasing the free ends of the levers 84, 85. During this movement the finger 114 of the lever 112 quits also the cam 115, Fig. 27, and the weight 113 is consequently enabled to cause the rocking of the sliding bow 116 since the stud 111 of the nave meets against the one end of the slot of the nave 109 of the former, see Fig. 27. The described movement will, however, not take place until the lever or bow 116 has been moved back by the worm-cam sufficiently to bring its roller-stud into the path of a cam 121 at the rear end of the worm cam 120, Figs 22, 23 and 24, by which cam 121 the bow 116 will be tilted upwardly or in the direction of lever 112, to lift said how clear of the worm cam 120 just before the arm or nose 114 on lever 112 leaves the cam 115. This movement of the bow independently of the lever can take place by reason of the connection between the naves ot' the bow and lever hereinabove referred to, and said movementis limited by the width of the slot 110 in the lever nave 105.

The various positions of the lever 112 under the action of the cams 115, 108 on cam shaft 8 are clearly illustrated in Figs. 25, 26 and 27. Hereupon the cross-head 99, the rod 90 and the wedges 83, 89 attached thereto are shifted forward under the action of the springs 100, 101, so that the jaws 86, 87 departing from each other under the tendency of a suitably arranged spring are rendered capable of entering the hole of the washerblank 18 just arrived at the proper position to be chucked by the said jaws. It will be evident that the jaws when releasing the blank after the same has been finished must be withdrawn into the spindle 4 by the hereinbefore described mechanism so far, that they will clear the path of those parts of the intermittently rotated disk which are designed for the reception and conveyance of the blank from the supply channel 17.

The turning and finishing of the blank chucked in the manner described are performed by the mechanisms particularly represented by Figs. 28 to 34 of the drawings. On the shaft 8 is fastened a cam 116 against which bears (under the tendency of a spring 117) a bar 118' provided with three inclines 119, 120' and 121, so that in consequence of the intermittent rotation of the shaft 8 the bar 118 is successively moved forward by steps, while at the end of its path the bar113 is at once pulled backward by the spring 117. As will be seen from the drawings, Fig. 33, upon the incline 120 of the bar 118' bears an arm 122 attached to a tool-holder 123 by a pivot 130 and being adjustable by means of a set screw 127.

The tool-holder is pivotally connected to the bed 2 by means of a bolt 131 arranged parallel to the axis of the mandrel 4, Fig. 28. By means of a plate 124 two chisels 125 and 126 are fastened at the upper end of the toolholder, the former serving for chamfering the washer, while the latter is designed to turn off the circumference of the same. To this tool-holder is furthermore attached a counterweight 129 by means of an arm 128 in order to automatically withdraw the chisels 125, 126 from the washers in the event that the action of the incline upon the arm 122 ceases. lVith the aid of the set-screw 127 the cutting edges of the chisels may be more or less advanced toward the axis of the washer and thereby the diameter of the latter varied within certain limits. In a similar manner the incline 121 acts upon another tool-holder 139, Fig. 34. The latter is provided with a slotted nave pressed together by a screw 140, in order to be rigidly fastened upon a shaft 136, as represented by Figs. 31 and in enlarged scale. The shaft 136 is provided with an arm 134 to which is attached by a pivot 133 a finger 132 bearing upon the incline 121' and being adjustable in relation to the rigid arm 134 by means of a set screw 143. This tool-holderisdesigned to Support the chisel 141 secured thereto by a wedge 142 and serving to turn the under side of the washer 18, while its upper face is to be finished in asimilar manner by a chisel 161, which is secured by a dovetailed wedge 162 to the tool-holder 159 keyed upon the shaft 156. The latter carries an arm 154 to which is attached bya pivot 153 a finger 152 bearing upon the incline 119 of the bar 118 and being adjustable in its position to the rigid arm 154 with the aid of a set screw 163. As soon as the inclines 119 and 121 in consequence of the sudden retraction of the bar 118 cease to act upon the fingers 132 and 152 of the tool-holders, a spring 151 attached to the free ends of two arms 149, 150, which depend from the rocking shafts 136, 156, is enabled to simultaneously swing the cutting edges of the chisels 141 and 161 away from the finished washer, so as to clear the space for the passage of the compartments 37 38 of the disk 23, the former serving to receive the finished washer on retraction of the chucking jaws 86,87, the latter being designed to present a fresh washer-blank to the said chucking jaws which are caused at the same moment to enter into the hole of the blank as hereinbefore described.

As the cutting edges of the chisels 141 and 161 are so designed that they mayturn olI" at once the entire surfaces of the washer, it will be required to adjust the same according to the diameter of the washers. For this reason the rocking shafts 136 and 156 of the toolholders 139 and 159 respectively are axially movable in their bearings 137, 138 and 157, 158 respectively, by means of a nut 145 respectively 165 fitting upon the thread 144 respectively 164 of the shaft 136 respectively 156 and engaging by their annular projecting rim 147 respectively 167 with the journal 146 respectively 166 rigidly secured to the bed 2 of the machine. Similar formed counter-nuts 148 respectively 168 may be employed for locking the nuts 145 and 165 respectively.

Having fully described my invention, wh at I claim, and desire to secure by Letters Patent, is-

1. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: a receiver for the blanks, a revoluble live spindle, an expansible chuck revoluble with and having endwise motion on said spindle, a step by step movable transfer mechanism adapted to transfer the blanks one after another from the receiverinto the plane of endwise motion of the chuck and to receive and deliver the finished washers, and means for expanding the chuck after its passage into the axial opening of the blank, forthe purpose set forth.

2. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: a live spindle, an expansible chuck revoluble with and having endwise motion on the spindle, a step by step revoluble holder adapted to receive and carry a blank into the plane of endwise motion of the chuck, a receiver for the blanks,

a feeding 'device for feeding said blanks to the holder and means for expanding the chuck after passing into the central opening of a blank in the holder and for releasing said blank from the holder, for the purpose set forth.

3. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: a receiver for the blanks, a step by step revoluble holder therefor, a feeding device for feeding one blank after another to the holder,a live spindle, an expansible chuck revoluble with and having endwise motion on the live spindle, means for positioning the holder to present a blank to the chuck, for expanding the chuck after passing into the axial opening of the blank and for releasing the latter from the holder, and finishing tools adapted to operate on the blank, for the purpose set forth.

4. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: alive spindle, an expansible chuck revoluble with and having endwise motion on said spindle, a holder for the blanks havingastep by step rotation in the plane of endwise motion of the chuck and adapted to presenta blank thereto, feeding devices for feeding one blank after another to the holder, means for expanding the chuck after passing into the axial openingof the blank in the holder, finishing tools adapted to operate on the blank,and means for releasing the finished blank from the chuck and returning the same to the holder, for the purpose set forth.

5. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: a live spindle, an expansible chuck revoluble with and having endwise motion on said spindle, a holder provided with a pocket for the reception of a finished washer, retaining devices for securing a blank to the holder, said holder having a step by step rotation in the plane of endwise motion of the chuck timed to alternately present a blank to and receive a finished washer from said chuck, means for expanding the chuck after passing into the axial opening of a blank in the holder and releasing said blank therefrom, and means for withdrawing the chuck from the finished washer when the receiving pocket of the holder is in position to receive the same, substantially as and for the purpose set forth.

6. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: a live spindle, an expansible chuck revoluble with and having endwise motion on said spindle, a holder provided with twopockets, for a blank and a finished washer, respectively, said pocket for the blank having an opening in its side, a yielding gate closing the outlet of said pocket, a receiver for the blanks, feeding devices for feeding said blanks one after another to the open-sided pocket of the holder, means for IIO imparting to said holder a step by step rotation timed to alternately present the open side of the pocket for the blanks and the pocket for the finished washer to the chuck, means for expanding the chuck after passing into the central opening of ablank, and means for withdrawing the chuck from the finished blank, for the purposes set forth.

7. In a machine for finishing washers, the following mechanically operated instrumentalities in combination,to wit: alive spindle, an expansible chuck revoluble with and having endwise motion on said spindle, a receiver for the blanks, a step by step movable transferring device adapted to transfer one blank after an other from the receiver into the plane of endwise motion of the chuck, and to receive a finished washer from said chuck and deliver said washer, finishing tools having a fixed relation relatively to the live spindle and chuck and adapted to operate on the opposite faces and the periphery of ablank, and mechanism adapted to move said tools into and out of their relative operative positions, for the purposes set forth.

8. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: alive spindle, an expansible chuck revoluble with and having endwise motion on said spindle, a receiver for the blanks, a step by step movable transferring device adapted to transfer one blank after anotherfrom the receiver into the plane of endwise motion of the chuck, and to receive the finished washer from said chuck and deliver said washer, finishing tools having a fixed relation relatively to the live spindle and chuck and adapted to operate on the opposite faces and the periphery of a blank,and mechanism adapted to move said tools into and out of their relative operative positions, the operation of said mechanism being timed to the movements of the transferring device, for the purposes set forth.

9. In a machine for finishing washers the following mechanically operated instrumentalities in combination, to wit: a live spindle, an expansible chuck revoluble with and having endwise motion on the spindle, a discoidal holder provided with a radially arranged pocket for a blank, said pocket and its inlet adjustable relatively to'the thickness of the blank, and spring actuated gates for closing the outlet thereof, a receiver for the blanks, a follower operating on said blanks to feed the same to the face of the discoidal holder, said holder also provided with a tangentially arranged pocket for the reception of a finished washer, finishing tools havinga fixed relation to the live spindle and chuck and adapted to operate on the opposite faces and periphery of a blank, and mechanism constructed and adapted to impart a step by step rotation to the holder, a reciprocating and expanding and contracting movement to the chuck and a reciprocating motion to the tools in a plane perpendicular to the axis of the chuck, said movements being timed to permit the holder to present the open side of its pocket to the chuck, move the same into the axial opening of theblank therein, expand the chuck, withdraw the blank from the pocket in the holder against the stress of the spring of its gates, move the finishing tools into op: erative position, move the same back into their normal position after the blank 15 finished, and collapse and withdraw the chuck from the finished washer, and simultaneously therewith move the discoidal holder to bring its pocket for the reception of said washer into position to receive the same, substantially as set forth.

10. In a machine for finishing washers the following mechanically Operated instrumentalities in combination, to wit: alive spindle, an expansible chuck revoluble with and having endwise motion on the spindle, a discoidal holder provided with a radially arranged pocket for a blank, said pocket and its inlet adjustable relatively to the thickness of the blank, and spring actuated gates for closing the outlet thereof, a receiver for the blanks, a follower operating on said blanks to feed the same to the face of the discoidal holder, said holder also provided with a tangentially arranged pocket for the reception of a finished washer, finishing tools having a fixed relation to the live spindle and chuck and adapted to operate on the opposite faces and periphery of said blank, and mechanism operated from the live spindle and adapted to impart a step by step rotation to the holder, a reciprocating and expanding and contracting movement to the chuck, and a reciprocating motion to the tools in a plane perpendicular to the axis of the chuck, said movements being timed to permit the holder to present the open side of its pocket to the chuck, move the same into the axial opening of the blank therein, expand the chuck, withdraw the blank from the pocket in the holder against the stress of the spring of its gates, move the finishing tools into operative position, move the same back into their normal position after the blank is finished, and collapse and withdraw the chuck from the finished washer, and simultaneously therewith move the discoidal holder to bring its pocket for the reception of said washer into position to receive the same, substantially as set forth.

11. The combination with the live spindle, a chuck revoluble therewith, the shaft 24, and a ratchet and pawl mechanism controlled by said spindle and adapted to impart a step by step rotation to said shaft; of the disk 23 pro vided with a radial feed channel opening into a like pocket extending beyond the periphery of the disk, said pocket having a substantially wedge shaped lateral extension provided with a wedge'shaped opening in one of its sides and having motion in a plane intersecting the longitudinal axis of the live spindle in front of the chuck whereby a washer in said pocket may be positioned for chucking, and springactuated gates adapted to close the outlet of the pocket, substantially as and for the purpose set forth.

12; The combination with the live spindle, a chuck revoluble therewith, the shaft 24, and a ratchet and pawl mechanism controlled by said spindle and adapted to impart a step by step rotation to said shaft; of the disk 23 provided with a radial feed channel adjustable as to depth, said channel opening into a pocket extending beyond the periphery of the disk, said pocket having, a substantially wedgeshaped lateral extension provided with a wedge-shaped opening in one of its sides and having motion in a plane intersecting the longitudinal axis of the live spindle in front of the chuck whereby a washer in said pocket may be positioned for chucking, and spring actuated gates adapted to close the outlet of the pocket, substantially as and for the purpose set forth.

13. The combination with the live spindle, a chuck revoluble therewith, the shaft 24, and a ratchet and pawl mechanism controlled by said spindle and adapted to impart a step by step rotation to said shaft; of the disk 23 provided with a radial feed channel adjustable as to depth, said channel opening into apocket extending beyond the periphery of the disk, said pocket having a substantially wedgeshaped lateral extension, provided with hinged and spring connected end walls 41, 42, and a side wall composed of two wedge-shaped pieces 43, 44, connected with and adjustable laterally on said end walls, said pieces 43, 44, constructed to leave a wedge-shaped opening between them, said open-sided wedge-shaped pocket having motion in a plane intersecting the longitudinal axis of the live spindle in front of the chuck, whereby a blank therein may be positioned for chucking, substantially as and for the purpose set forth.

14. The combination with the live spindle, a chuck revoluble therewith, the shaft 24, and a ratchet and pawl mechanism controlled by said spindle and adapted to impart a step by step rotation to said shaft; of the disk 23, provided with a radial feed channel adjustable as to depth, said channel opening into a pocket extending beyond the periphery of the disk, said pocket having a substantially wedgeshaped lateral extension provided with an opening in one of its side walls of less diameter than that of the washer blank, one of its side walls adjustable inward and from the other, spring actuated gates adapted to close the wedge-shaped outlet of the pocket, a receiver V-shaped in cross-section for receiving the blanks on edge, and a follower adapted to press the foremost blank against the channeled face of the disk, substantially as and for the purpose set forth.

15. The combination with the live spindle, a chuck thereon, finishing tools adapted to operate on a washer blank when chucked, the shaft 24, its feed disk 23 adapted to feed a blank to the chuck, and a ratchet and pawl mechanism controlled from the live spindle and adapted to impart a continuous step by step rotation to shaft 24; of mechanism for 1ntermittently looking the said ratchetand pawl mechanism out of operation, for the purpose set forth.

16. The combination with the live spindle, a chuck thereon, finishing tools adapted to operate on a washer blank when chucked,the shaft 24, its feed disk 23 adapted to feed a blank to the chuck, and a ratchet and pawl mechanism controlled from the live spindle and adapted to impart a continuous step by step rotation to shaft 24; of mechanism for 1ntermittently locking the said ratchet and pawl mechanism out of operation, said mechanism also controlled from the live spindle, for the purpose set forth.

17. The combination with the live spindle, a chuck thereon, finishing tools adapted to operate on a washer blank when chucked, the shaft 24, its feed disk 23 adapted to feed a blank to the chuck, and a ratchet and pawl mechanism controlled from the live spindle and adapted to impart a continuous step by step rotation to shaft 24 j of mechanism for intermitten tly lockin g the said ratchet and pawl mechanism out of operation consisting of tappets on shaft 24, a weighted looking lever, as 69, and a revoluble shaft 8 provided with a radial tappet adapted to engage said lever and rock the same on its fulcrum, for the purpose set forth.

18. The combination with the live spindle, the shaft 24, tappets 65, 66, thereon, a ratchet and pawl mechanism controlled from the live spindle and adapted to impart a step by step rotation to said shaft, of mechanism for intermittently locking the said ratchet and pawl mechanism out of operation, consisting of a weighted locking lever adapted to engage one or the other tappet on shaft 24, and the shaft 8 provided with a radiallu g or cam 74 adapted to rock the locking lever, said shaft 8 deriving motion from said live spindle substantially as and for the purpose set forth.

19. The combination with the live spindle and the cam wheel 61 having four arms, said cam wheel fast on said spindle; of the shaft 24, the ratchet wheel 50 thereon, the weighted levers 59, 60, fulcrnmed on shaft 24 and extending into the path of the arms of the cam wheel 61, and the pawls 51 and 52 pivoted to said levers and adapted to engage the teeth of ratchet 50 on said shaft 24, substantially as and for the purpose set forth.

20. The combination with the, live spindle, the cam 9, and cam wheel 61 having four arms, said cam wheel fast on said live spindle, the shaft 24, the ratchet wheel 50, and tappets 65, 66, fast on said shaft, the weighted pawl levers 59, 60, fulcrumed thereon, and the pawls 51, 52, pivotally connected with said levers and adapted to engage the teeth of ratchet 50; of the shaft 8 provided with a cam or radial lug 74, a ratchet wheel 11 fast on said shaft, a pawl lever 10 loose thereon and ICC extending into the path of the cam 9 on the live spindle, the pawl 13 pivotally connected with lever 10 and engaging the teeth of ratchet 11, and the locking lever 69 having a finger in the path of lug 7t on shaft 8 and extending into the path of tappets 65, 66, on shaft 24, substantially as and for the purpose set forth.

21. The combination with the disk 23 provided with a radial slot 27; of the face plate 28 covering one side of the slot and provided with a circular opening, the face plate 31 covering said circular opening, the disk 29 provided with an axial screw-threaded stem extending through face plate 31, and a nut or nuts on said stem whereby said disk may be projected more or less into the slot or withdrawn therefrom, for the purpose set forth.

22. The combination with the revoluble disk 23 provided with a radial channel leading to a pocket, said channel adjustable as to depth; of a feed trough V-shaped in cross sec-.

tion having its discharge end proximate to the channeled face of the disk, and afollower in and adapted to move toward said dis charge end of the trough, for the purpose set forth.

23. The combination with the live spindle, a chuck thereon, the shaft 24, and mechanism for imparting a step by step rotation to said shaft; of the disk 23 provided with a radial feed channel, a pocket in communication therewith and extending beyond the periphery of the disk, said pocket substantially T- shaped at its outer end, a partition dividing the horizontal portion of the pocket into two compartments on a line with one edge of the radial channel in the disk, one of said compartments open at its outer end, the other having a wedge shaped outlet, and an opening in one of its side walls, and spring actuated gates for closing said outlet, said compartments revolving in a plane perpendicular to the longitudinal axis of the live spindle in front of and below the chuck respectively, substantially as and for the purpose set forth.

24. The combination with the hollow live spindle, an expansible chuck revoluble with the spindle,levers connected with and adapted to impart to the jaws of the chuck a rectilinear motion in one direction and expand said jaws, and springs acting on said levers to collapse the jaws and move the same in a reverse direction; of an actuating rod contained in the live spindle, actuating wedges rigidly connected with the rod and adapted to operate on the clutch jaw levers, and means for imparting motion in opposite directions to said rod, for the purpose set forth.

The combination with the hollow live spindle, an expansible chuck revoluble with the spindle, levers connected with and adapted to impart to the jaws of the chuck a rectilinear motion in one direction and expand said jaws, springs acting on said levers to collapse the jaws and move the same in a reverse direction; of an actuating rod contained in the live spindle, actuating wedges rigidly connected with said rod and adapted to act on the clutch jaw levers and rock the same in one direction, devices controlled from the live spindle adapted to impart motion to the rod in one direction, and a resilient power adapted to move said rod in an opposite direction, for the purpose set forth.

26. The combination with the hollow live spindle, the worm cam 120, the cam 121 at the rear end of said worm cam, both secured to the spindle and the fixed rods 95, 96; of the chuck actuating rod 90, the cross head 99 secured thereto, said cross head having sleeves 97, 98, for the rods 95, 96 respectively, a rocklever provided with a stud adapted to engage with the worm cam on the live spindle and be disengaged therefrom by the cam 121, said lever operating on the cross-head 99 to move the same and the rod in one direction,and means for moving said rodin a reverse direction, for the purpose set forth.

27. The combination with the hollow live spindle, the worm cam 120, the cam 121 at the rear end of said worm cam,both secured to the spindle, and the fixed rods 95, 96, of the chuck actuating rod 90, the cross head 99 having sleeves 97, 98, adapted to slide on said rods 95, 96, respectively, the lever 116 fulcrumed to and adapted to slide on rod and to be guided by rod 96, the hub of said lever having bearing against sleeve 97 of the cross head, aroller 119 depending from said lever, said roller adapted to engage with the worm earn 120 and with the cam 121, substantially as and for the purpose set forth.

28. The combination with the hollow live spindle, the worm cam 120 and the cam 121 at the rear end of said worm cam, both cams fast on said spindle, the fixed rods 95, 96, the chuck actuating rod 90 and the cross head 99 having sleeves 97, 98 adapted to slide on rods 95, 96, respectively; of the lever 116 guided by rod 96, said lever provided with a sleeve loose on rod 95 and having a radial pin 111 and a depending roller 119 adapted to engage worm cam 120 and to be engaged by cam 121, the weighted lever 112 loose on sleeve 105 and provided with a slot in its nave for the radial pin 111, and the shaft 8 provided with cams 108 and 115 adapted to engage the arm 106 on sleeve 105 and arm 1L1 of weighted lever 112, substantially as and for the purpose set forth.

' 29. The combination with the hollow live spindle, the worm cam and the cam 121 at the rear end of said worm cam fast on said spindle, the fixed rods 95, 96, the chuck actuating rod 90 and the cross head 99 having sleeves 9'7, 98 adapted to slide on rods 95, 96, respectively; of the weighted lever 112, the hub 109 thereof loosely mounted on nave 105 the lever 116 mounted on nave 105 of lever 106 and provided with a slot 110 for the re ception of the pin 111, said lever 116 having in its outer downwardly bent free end a segmental slot for the passage of fixed rod 96, and provided centrally with a depending roller 119 adapted to engage with the worm cam 120 and the cam 121, the shaft 8 provided with cams 108 and 115 adapted to operate on lever 112 and its arm 106, and springs 100, 101, connected with the opposite ends of vthe cross head 99 and with fixed supports, substantially as and for the purpose set forth.

30. The combination with the hollow live spindle, the cam 9, the worm cam 120, cam 121, the rods 95, 96, and the chuck actuating rod 90 having sleeves 97, 98 adapted to slide on rods 95, 96, respectively; of the weighted lever 112, its radially slotted hub 109, the lever 116 provided with a radial arm 106, its nave 105 on which hub 109 is loosely mounted, said nave provided with a radial pin extending into the radial slot of said hub 109, said lever 116 having in its outer downwardly bent free end a segmental slot for the pas sage of fixed rod 96, and provided centrally with a depending roller 119 adapted to engage with the worm cam 120 and its cam 121, the shaft 8 provided with cams 108 and 115 adapted to operate on lever 112 and arm 106, a ratchet and pawl lever 11, 10, on said shaft, said lever in the path of cam 9 on live spindle, and the springs 100 and 101 connected with the opposite ends of the cross head and with fixed supports, substantially as and for the purpose setforth.

31. The combination with the live spindle and its chuck of a pair of tool holders carrying facing tools on one side of the chuck, said holders adapted to move toward and from the plane of rotation of said chuck and a tool holder on the opposite side of the chuck said holder carrying chamfering and edge tools and adapted to swing in a plane perpendicular to the axis of rotation of the chuck, and mechanism for moving said tools simultaneously into and out of operative position,

for the purpose set forth.

32. The combination with the live spindle and its chuck; of a pair of tool holders carrying facing tools on one side of the chuck, said holders adapted to move toward and from the plane of rotation of said chuck, and a tool holder on the opposite side of the chuck, said holder carrying chamfering and edge tools and adapted to swing in a plane perpendicular to the axis of rotation of the chuck, and mechanism for moving said tools simultaneously into and out of operative position, said mechanism operated from the live spindle, for the purpose set forth.

33. The combination with the live spindle and its chuck; of a tool holder, a fixed pivot therefor, said tool holder carrying a chamfering and an edge cutter adapted to operate simultaneously on a blank, and an actuating device controlled by a revoluble element of the machine adapted to swing the holder toward the chuck into the plane of rotation of a washer thereon.

34. The combination with the live spindle and its chuck; of a tool holder, a fixed pivot therefor, a reciprocating bar provided with an inclined face adapted to operate on the holder and swing the same toward the chuck into the plane of rotation of a washer thereon, a revoluble cam acting on the bar to move the same in one direction and means for returning the tool holder and bar into their normal positions after having been moved out-of it, substantially as and for the purpose set forth.

35. The combination with the live spindle, its chuck, a tool holder, a fixed pivot therefor, said holder provided near its upper end with a weighted arm 128, near its lower end with a rearwardly projecting arm, and a finger 22 pivoted below the last named arm, and a set screw working in said arm and having bearing on the pivoted finger, and an actuating bar provided with an inclined face 120 adapted to act upon the under side of the finger and tilt the holder against the stress of its weight toward the chuck; of a shaft deriving motion from the live spindle, a cam on said shaft acting on the bar to move it in one direction, and a spring adapted to move said bar in a reverse direction, substantially as and for the purpose set forth.

36. The combination with the live spindle and its chuck; of two pivoted tool holders provided with facing tools, said holders arranged on one side of the chuck and adapted to swing toward and from the plane of rotation of a washer on said chuck and toward and from each other, and an actuating device controlled by a revoluble element of the machine adapted to move said holders simultaneously toward each other whereby both faces of a washer are finished simultaneously, substantially as set forth.

37. The combination with the live spindle and its chuck; of two pivoted tool holders provided with facing tools, said holders arranged on one side of the chuck and adapted to swing toward and from the plane of rotation of a washer on the chuck and toward and from each other, an actuating device controlled from the live spindle and adapted to move the holders simultaneously toward each other, and a spring connected with the holder pivots to move said holders from each other, substantially as and for the purpose set forth.

38. The combination with the live spindle, its chuck, two tool holders provided each with a facing tool, said holders arranged on one side of the chuck, pivots for the holders in a plane perpendicular to the axis of the live spindle, and adjusting devices for adjusting the pivots in said plane; of an actuating device, as a bar, having inclined faces adapted to act upon the tool holders and move the same toward each other, and a spring connected with the holder pivots for moving said holders from each other, substantially as and for the purpose set forth.

39. The combination with the live spindle, its chuck, two tool holders provided each with a facing tool, said holders arranged on one side of the chuck, pivots on which the holders are adjustably secured, said pivots in a plane perpendicular to the axis of the live spindle, and adjusting devices for adjusting the pivots in said plane; of an actuating device, as a bar 118 provided with inclines 119', 121 adapted to act on radial arms secured to the holder pivots and move said holders toward each other, and a revoluble cam adapted to move the bar in one direction, and a spring adapted to move said bar in an opposite direction, substantially as and for the purpose set forth.

40. The combination with the live spindle, its chuck, the pivot shafts 136, 156, the tool holders 139, 159, provided with split bearings for said shafts, a radial arm projecting from said bearings, and a finger pivoted below the radial arm, said arms provided with an adjustable abutment screw for their respective fingers, and a spring 151 connected with the pivot shafts; of the bar 118' provided with the inclines 119 and 121 the shaft 8, the cam 116' thereon, and the spring 117, said cam and spring adapted to move the bar in opposite directions, substantially as and for the purpose set forth.

41. The combination with the hollow live spindle radially slotted at its outer end, and a chuck composed of jaws adapted to move toward and from each other, said jaws connected with actuating levers working in the radial slots of the spindle, and a chuck frame having a rectangular opening and pivot bearings for the jaw actuating levers; of the rod 90 contained and having endwise motion in the spindle, the wedges 88 and 89 at the outer end of said rod, said wedges adapted to move 0 the jaw levers in one direction to spread the jaws of the chuck, and means for moving said levers in a reverse direction and collapse said jaws, for the purpose set forth.

42. The combination with the hollow live spindle radially slotted at its outer end, and a chuck composed of jaws adapted to move toward and from each other, said jaws connected with actuating levers working in the radial slots of the spindle, and a chuck frame having a rectangular opening, and pivot bearings for the jaw actuating levers, said bearings adjustable within said opening; of the rod 90 contained and having endwise motion in the spindle, the wedges 88 and 89 at the outer end of said rod, said wedges adapted to move the jaws in one direction to spread the jaws of the chuck, and means for moving said levers in a reverse direction and collapse said jaws, for the purpose set forth.

43. In a machine for finishing washers, a live spindle, an expansible chuck revoluble with and having endwise motion on said spindle, a receiver for the blanks, a transfer device for transferring the blanks one after another from the receiver into the plane of endwise motion of the chuck, an edge and chamfering tool for truing the periphery and chamfering the edge of a blank, and facing tools adapted to act simultaneously on both faces of such blank, and mechanism for imparting the necessary movements to said devices, said mechanisms deriving their motion from the live spindle, for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 18th day of Octobor, 1892.

KARL FRUCHT.

W'itness es TH. LoRnNs, G. MARIENHAGEN. 

